/**
 * @param f Function that is applied to every element of the array. This function must call the provided continuation when it is done processing the element.
 * @param xs The array to loop over.
 * @param cont Continuation that is called when `forEachCont` finished processing every element of the array.
 */
export declare function forEach<T>(f: (x: T, cont: () => void) => void, xs: Array<T>, cont: () => void): void;